PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Willian Way, LETCHWORTH GARDEN CITY, SG6 2HL

Introduction

Energy Performance Certificates (EPCs) are designed to tell you how efficient a building is and provides a rating between A (very efficient) and G which is inefficient. It helps to identify how costly it will be to light and heat a property and what the carbon dioxide emissions are likely to be.

An EPC needs to be provided as part of the process of selling or renting a house and should be availale as soon as the property is marketed. An EPC may only be produced by an approved domestic energy assessor and each certificate is valid for 10 years.

Additionally, an EPC will highlight potential efficiency improvements that could be made to the property, an estimated cost for implementation and the likely savings that can be made as a result. These costs and savings are for a typical household in that property and not specific to you or your family.

Certificates issued for Willian Way, SG6 2HL are shown below and the data are updated monthly for England and Wales and quarterly for properties in Scotland.

Data are provided by the Department for Levelling Up, Housing and Communities.

Energy Performance Certificates Generated for Willian Way, LETCHWORTH GARDEN CITY, SG6 2HL
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
46 Willian Way
Date
9 Mar 2012
Current
Potential
55
69
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
9 Mar 2012
55
69
Total Floor Area
166 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
6.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
50 WILLIAN WAY, LETCHWORTH GARDEN CITY
Date
5 Oct 2020
Current
Potential
63
77
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
5 Oct 2020
63
77
Total Floor Area
141 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
56 Willian Way
Date
13 Oct 2013
Current
Potential
56
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
13 Oct 2013
56
80
Total Floor Area
113 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
60 Willian Way
Date
8 Sep 2011
Current
Potential
60
67
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
8 Sep 2011
60
67
Total Floor Area
169 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
64 Willian Way
Date
4 Aug 2013
Current
Potential
67
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
4 Aug 2013
67
78
Total Floor Area
137 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
1
Address
66 Willian Way
Date
31 Jan 2017
Current
Potential
51
79
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
31 Jan 2017
51
79
20 Apr 2016
50
78
Total Floor Area
113 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
68 Willian Way
Date
11 Feb 2010
Current
Potential
33
61
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
11 Feb 2010
33
61
Total Floor Area
78 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
5.6
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
70 Willian Way
Date
15 Jul 2012
Current
Potential
45
74
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
15 Jul 2012
45
74
Total Floor Area
120 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
76 Willian Way
Date
12 Sep 2018
Current
Potential
50
74
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
12 Sep 2018
50
74
Total Floor Area
150 sq m
Current CO2 Emissions Level
8.8
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
4
Address
78 Willian Way
Date
20 Aug 2014
Current
Potential
48
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
20 Aug 2014
48
80
Total Floor Area
118 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
80 Willian Way
Date
6 Sep 2020
Current
Potential
68
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Sep 2020
68
79
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
82 Willian Way
Date
15 Aug 2016
Current
Potential
46
67
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
15 Aug 2016
46
67
Total Floor Area
162 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
6.2
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

Energy Performance Certificate Notes

There are a number of reasons that certificates are excluded from the dataset;

  • The holder of the energy certificate has 'opted-out' of disclosure
  • The certificate is excluded on the grounds of national security
  • Certificates that are marked as 'cancelled' or 'not for issue'

Certificates are grouped together by the property reference identifier rather than the postal address with a view to showing the history of changes made to properties over time. Sometimes, one property may exist as multiple entries in the table instead and this is as a result of inconsistent building references being used on each prepared certificate.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.